Libinjection : SQL / SQLI Tokenizer Parser Analyzer

Libinjection is a SQL / SQLI tokenizer parser analyzer. For

Simple example

#include “libinjection.h”
#include “libinjection_sqli.h”
int main(int argc, const char* argv[])
struct libinjection_sqli_state state;
int issqli;
const char* input = argv[1];
size_t slen = strlen(input);
/* in real-world, you would url-decode the input, etc */
libinjection_sqli_init(&state, input, slen, FLAG_NONE);
issqli = libinjection_is_sqli(&state);
if (issqli) {
fprintf(stderr, “sqli detected with fingerprint of ‘%s’\n”, state.fingerprint);
return issqli;

$ gcc -Wall -Wextra examples.c libinjection_sqli.c
$ ./a.out “-1′ and 1=1 union/* foo */select load_file(‘/etc/passwd’)–“
sqli detected with fingerprint of ‘s&1UE’

More advanced samples:


Versions are listed as “major.minor.point”

Major are significant changes to the API and/or fingerprint format. Applications will need recompiling and/or refactoring.

Minor are C code changes. These may include

  • logical change to detect or suppress
  • optimization changes
  • code refactoring

Point releases are purely data changes. These may be safely applied.


The continuous integration results at tests the following: